Extremely precise fit of the goggle to the helmet with Anon's widest field of vision and unparalleled versatility by switching from toric to cylindrical lenses. The Anon M4 Toric Goggle offers a precise fit for helmet and goggle combination with the wide field of vision and enhanced peripheral vision of a toric lens. Our innovative Magna-Tech® technology for quick and easy lens changes utilizes powerful magnets. The M4 offers unparalleled versatility to switch between toric and cylindrical lenses. This version of the M4 includes two toric lenses with Perceive Optics for high-contrast clear vision for terrain recognition and Anon's best anti-fog treatment for crystal clear vision in any weather condition. Magnetic Face Mask Integration (MFI®) provides seamless face mask attachment, and full-length vents ensure consistent airflow for clear, fog-free vision. An MFI face mask, microfiber goggle case and compression goggle case are included. Anon - M4 Cylindrical Ski Goggle family tree